public class Example04 {
    public static void main(String[] args) {
        int x = 12;//定义变量x
        {
            int y = 96;//定义变量y
            System.out.println("x is " + x);//访问变量x
            System.out.println("y is " + y);//访问变量y

            y=x;
        }//访问变量x,为变量赋值
        System.out.println("x is " + x);//访问变量x
    }
}
